Observable Response Discrepancy in answerdev/answer

published 2023-03-21 3 y ago modified 2026-06-17 4 mo ago also GHSA-6x5v-cxpp-pc5x , GO-2023-1654 , EUVD-2023-0914

cvss: 5.3; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

Observable Response Discrepancy in GitHub repository answerdev/answer prior to 1.0.6.

Patch / fix

fixed in 2 links 1

go github.com/answerdev/answer 1.0.6
answerdev answerdev/answer 1.0.6

github.com/answerdev/answer@1de3ec2 commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 20 mo ago (2025-02-25)

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

huntr.dev https://huntr.dev/bounties/d8d6c259-a0f2-4209-a3b0-ecbf3eb092f4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
GitHub	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
go	github.com/answerdev/answer	<1.0.6	1.0.6

Affected products

answerdev answerdev/answer

Classification

Weakness

CWE-204 Observable Response Discrepancy
CWE-203 Observable Discrepancy

References

github.com /answerdev/answer/commit/1de3ec27e50ba7389c9449c59e8ea3a37a908ee4
web, patch
huntr.dev /bounties/d8d6c259-a0f2-4209-a3b0-ecbf3eb092f4
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2023-1540
advisory
github.com /answerdev/answer
package
github.com /advisories/GHSA-6x5v-cxpp-pc5x
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary